diff -r 000000000000 -r dd21522fd290 webengine/pagescaler/inc/minimapgenerator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/pagescaler/inc/minimapgenerator.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,247 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+
+#ifndef CMINIMAPGENERATOR_H
+#define CMINIMAPGENERATOR_H
+
+//  INCLUDES
+
+#include <e32base.h>
+
+#include "minimapscaler.h"
+
+// CONSTANTS
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+class CMinimap;
+class CFbsBitGc;
+class CFbsBitmap;
+class CFbsBitmapDevice;
+class CWindowGc;
+class CMinimapGenerator;
+class CMinimapOOMCollector;
+
+// CLASS DECLARATION
+
+
+/**
+*
+*
+*  @lib webkit.dll
+*  @since 3.1
+*/
+class CMinimapGenerator : public CBase, MMinimapScalerCallback
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        */
+        static CMinimapGenerator* NewL(CMinimap& aMinimap);
+
+        /**
+        * Destructor.
+        */
+        virtual ~CMinimapGenerator();
+
+    public: // New functions
+
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void SetKeepBitmap(TBool aKeepBitmaps);
+
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void Invalidate();
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void UpdateL(TBool aScrolling=EFalse);
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void ScrollL();
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void Clear();
+
+
+        /**
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void Draw(CFbsBitGc& aGc, const TRect& aTo) const;
+        void Draw(CWindowGc& aGc, const TRect& aTo) const;
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        void SetKeepsBitmaps(TBool aKeepBitmaps);
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        TBool KeepsBitmaps() const;
+
+        /**
+        *
+        * @since now
+        * @param
+        * @return
+        */
+        void DrawColoringMask(CFbsBitGc& aGc, const TRect& aMinimapViewportOnDoc) const;
+        void DrawColoringMask(CWindowGc& aGc, const TRect& aMinimapViewportOnDoc) const;
+
+         /**
+        *
+        * @since now
+        * @param
+        * @return
+        */
+        void VisitArea(const TRect &aArea);
+
+        /**
+        * @since 3.1
+        * @param
+        * @return the scaled copy of the page
+        */
+        CFbsBitmap* ScaledPage() const;
+
+
+        /**
+        * @since 3.1
+        * @param
+        * @return size of the document being scaled
+        */
+        TSize DocSize() const { return iDocSize; }
+
+    private: // Functions from MMinimapScalerCallback
+
+        void ScalingCompletedL(CFbsBitmap& aResult, const TRect& aTargetRect);
+
+    public:
+
+        TBool StartAsyncBufferUpdateL();
+
+    private:
+
+        TBool FastBufferUpdateL();
+        TBool CheckAndCreateBitmapsL();
+    public:
+        void DeleteUnscaledBitmap();
+        void DeleteBufferBitmap();
+
+#ifdef __OOM__
+        TBool IsCollectingMemory();
+        void CollectMemory();
+#endif
+
+    private:        
+        void InvalidateBuffers();
+        void CalcBufferPosition();
+        TRect BufferRect() const;
+        template<class GC> void DrawT(GC& aGc, const TRect& aTo) const;
+        template<class GC> void DrawColoringMaskT(GC& aGc, const TRect& aMinimapViewportOnDoc) const;
+
+    private:
+
+        /**
+        * C++ constructor.
+        */
+        CMinimapGenerator(CMinimap& aMinimap);
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+
+    private:    // Data
+
+        CMinimap* iMinimap; // not owned
+        CMinimapScaler* iScaler; // owned
+
+        CFbsBitmap* iUnscaledBitmap; //owned
+        CFbsBitmapDevice* iUnscaledBitmapDevice; //owned
+        CFbsBitGc* iUnscaledBitmapGc; //owned
+        CFbsBitmap* iBufferBitmap; //owned
+        CFbsBitmapDevice* iBufferBitmapDevice; //owned
+        CFbsBitGc* iBufferBitmapGc; //owned
+
+        CIdle* iAsyncUpdateStarted; // owned
+
+        RRegion iValidLQRegion;
+        RRegion iValidHQRegion;
+
+        TPoint iBufferPos;
+
+        TSize iDocSize;
+
+        TBool iKeepsBitmaps;
+
+        TInt iLastHQUpdatePos;
+
+        /**
+        * Maps the visited regions. Used to control mmap coloring.
+        */
+        RRegion iVisitedRegion;
+        
+        CMinimapOOMCollector* iOOMCollector;
+    };
+
+#endif      // CMINIMAPGENERATOR_H
+
+// End of File